// File generated from our OpenAPI spec by Stainless. See CONTRIBUTING.md for details.

import { APIResource } from '../core/resource';
import * as Shared from './shared';
import { CreditNotesPage } from './shared';
import { APIPromise } from '../core/api-promise';
import { Page, type PageParams, PagePromise } from '../core/pagination';
import { RequestOptions } from '../internal/request-options';
import { path } from '../internal/utils/path';

/**
 * The [Credit Note](/invoicing/credit-notes) resource represents a credit that has been applied to a
 * particular invoice.
 */
export class CreditNotes extends APIResource {
  /**
   * This endpoint is used to create a single
   * [`Credit Note`](/invoicing/credit-notes).
   *
   * The credit note service period configuration supports two explicit modes:
   *
   * 1. Global service periods: Specify start_date and end_date at the credit note
   *    level. These dates will be applied to all line items uniformly.
   *
   * 2. Individual service periods: Specify start_date and end_date for each line
   *    item. When using this mode, ALL line items must have individual periods
   *    specified.
   *
   * 3. Default behavior: If no service periods are specified (neither global nor
   *    individual), the original invoice line item service periods will be used.
   *
   * Note: Mixing global and individual service periods in the same request is not
   * allowed to prevent confusion.
   *
   * Service period dates are normalized to the start of the day in the customer's
   * timezone to ensure consistent handling across different timezones.
   *
   * Date Format: Use start_date and end_date with format "YYYY-MM-DD" (e.g.,
   * "2023-09-22") to match other Orb APIs like /v1/invoice_line_items.
   *
   * Note: Both start_date and end_date are inclusive - the service period will cover
   * both the start date and end date completely (from start of start_date to end of
   * end_date).
   *
   * @example
   * ```ts
   * const creditNote = await client.creditNotes.create({
   *   line_items: [
   *     {
   *       amount: 'amount',
   *       invoice_line_item_id: '4khy3nwzktxv7',
   *     },
   *   ],
   *   reason: 'duplicate',
   * });
   * ```
   */
  create(body: CreditNoteCreateParams, options?: RequestOptions): APIPromise<Shared.CreditNote> {
    return this._client.post('/credit_notes', { body, ...options });
  }

  /**
   * Get a paginated list of CreditNotes. Users can also filter by customer_id,
   * subscription_id, or external_customer_id. The credit notes will be returned in
   * reverse chronological order by `creation_time`.
   *
   * @example
   * ```ts
   * // Automatically fetches more pages as needed.
   * for await (const creditNote of client.creditNotes.list()) {
   *   // ...
   * }
   * ```
   */
  list(
    query: CreditNoteListParams | null | undefined = {},
    options?: RequestOptions,
  ): PagePromise<CreditNotesPage, Shared.CreditNote> {
    return this._client.getAPIList('/credit_notes', Page<Shared.CreditNote>, { query, ...options });
  }

  /**
   * This endpoint is used to fetch a single [`Credit Note`](/invoicing/credit-notes)
   * given an identifier.
   *
   * @example
   * ```ts
   * const creditNote = await client.creditNotes.fetch(
   *   'credit_note_id',
   * );
   * ```
   */
  fetch(creditNoteID: string, options?: RequestOptions): APIPromise<Shared.CreditNote> {
    return this._client.get(path`/credit_notes/${creditNoteID}`, options);
  }
}

export interface CreditNoteCreateParams {
  line_items: Array<CreditNoteCreateParams.LineItem>;

  /**
   * An optional reason for the credit note.
   */
  reason: 'duplicate' | 'fraudulent' | 'order_change' | 'product_unsatisfactory';

  /**
   * A date string to specify the global credit note service period end date in the
   * customer's timezone. This will be applied to all line items that don't have
   * their own individual service periods specified. If not provided, line items will
   * use their original invoice line item service periods. This date is inclusive.
   */
  end_date?: string | null;

  /**
   * An optional memo to attach to the credit note.
   */
  memo?: string | null;

  /**
   * A date string to specify the global credit note service period start date in the
   * customer's timezone. This will be applied to all line items that don't have
   * their own individual service periods specified. If not provided, line items will
   * use their original invoice line item service periods. This date is inclusive.
   */
  start_date?: string | null;
}

export namespace CreditNoteCreateParams {
  export interface LineItem {
    /**
     * The total amount in the invoice's currency to credit this line item.
     */
    amount: string;

    /**
     * The ID of the line item to credit.
     */
    invoice_line_item_id: string;

    /**
     * A date string to specify this line item's credit note service period end date in
     * the customer's timezone. If provided, this will be used for this specific line
     * item. If not provided, will use the global end_date if available, otherwise
     * defaults to the original invoice line item's end date. This date is inclusive.
     */
    end_date?: string | null;

    /**
     * A date string to specify this line item's credit note service period start date
     * in the customer's timezone. If provided, this will be used for this specific
     * line item. If not provided, will use the global start_date if available,
     * otherwise defaults to the original invoice line item's start date. This date is
     * inclusive.
     */
    start_date?: string | null;
  }
}

export interface CreditNoteListParams extends PageParams {
  'created_at[gt]'?: string | null;

  'created_at[gte]'?: string | null;

  'created_at[lt]'?: string | null;

  'created_at[lte]'?: string | null;
}

export declare namespace CreditNotes {
  export {
    type CreditNoteCreateParams as CreditNoteCreateParams,
    type CreditNoteListParams as CreditNoteListParams,
  };
}

export { type CreditNotesPage };